[RFC] XDG_RUNTIME_DIR

[Lennart Poettering]

On Wed, 10.11.10 15:09, Bill Nottingham (notting at redhat.com) wrote:

> > TMPDIR influences tmpnam(), however that function kinda expects a common
> > /tmp namespace anyway, so redirecting this is not necessary.
> > 
> > I think we shouldn't break assumptions about $TMPDIR, for example that
> > it might be useful for communicating with other people.
> 
> Given that it's settable per-user, I'm not sure why you would
> rely on that aspect.

Hmm, that's a good point.

> > It's actually one of the things where I believe polyinstantiated /tmp is
> > actually going wrong: $TMP is shared between users, which has many
> > negative aspects, but also allows users to communicate with each other. 
> 
> The reason I ask is that I'd expect that apps would code their usage such
> that they'd do fallback from XDG_RUNTIME_DIR, to TMPDIR, to /tmp/<whatever>,
> and if we set TMPDIR to XDG_RUNTIME_DIR, the 'right' thing happens to the
> apps without patching. (For example, orbit and pulseaudio sockets are
> currently in $TMPDIR.)

Hmm, I guess setting TMPDIR to $XDG_RUNTIME_DIR/tmp or so would make
sense. Anybody else has an opionion about this?

Lennart

-- 
Lennart Poettering - Red Hat, Inc.